You will need:
Place the stems into the glass jar. Pour enough of your favorite vodka over the stems to completely submerge them. Do not fill the jar up or your vodka will be weak. Place in a dark pantry or closet and let sit for one week. Strain the stems out with a cheesecloth or with a coffee filter, transferring from one jar to another. Chill in the freezer for a few hours. Break it out and enjoy your new happy hour, 4:20 pm!